GPS000 GPS Time Receiver System User Manual Version. World Time Solutions World Time Solutions Limited
COPYRIGHT 0-0 World Time Solutions Limited. All Rights Reserved. All information contained within this document is the property of World Time Solutions Limited and cannot be used or reproduced by any person or company without written consent from World Time Solutions Limited. World Time Solutions Limited reserves the right to make periodic amendments to the information in this document without notice. TRADEMARKS All registered trademarks and trademarks are property of their respective owners. RoHS COMPLIANCE World Time Solutions Limited works with its suppliers to ensure all products comply with the Restriction of Hazardous Substances (RoHS) directive. For further information, please visit our web site at: www.worldtimesolutions.com/rohs.html DISPOSAL SOFTWARE LICENCE This product contains proprietary World Time Solutions Limited software. This software is supplied under the World Time Solutions Limited Software Licence Agreement. For further information or to view a copy of the software licence, please visit: www.worldtimesolutions.com LIMITED WARRANTY The GPS000 GPS Time Receiver System is guaranteed against failure due to faulty parts or workmanship for a period of five (5) years from date of purchase. In the event of product failure due to faulty parts or workmanship within the warranty period, World Time Solutions Limited, at its own discretion, will either (a) repair the product, (b) supply a replacement product, (c) supply a functionally equivalent replacement product, or (d) refund the purchase price of the product. The limited warranty will not apply if (a) the product has not been installed or operated as per our instructions, (b) the product has been modified in anyway. In the event of failure, the GPS000 should be returned to the manufacturer for inspection and repair. Please visit our support pages for further details: www.worldtimesolutions.com/support.html TECHNICAL SUPPORT Please dispose of this unit properly. To minimize pollution and help protect the environment, this unit should be recycled. For further information and/or to view a copy of the World Time Solutions Limited Waste Electrical and Electronic Equipment Policy, please visit our web site at: www.worldtimesolutions.com/recycle.html To obtain help with the installation or operation of the GPS000, please visit our web site at: www.worldtimesolutions.com/support.html II GPS000 - GPS Time Receiver System - User Manual - Version.
8 8 - Introduction The GPS000 is a high precision time receiver system comprising of a GPS timing antenna and separate decoder module. The system is designed to synchronise to the GPS navigation network and provide time information to an MC Series master clock via a cable connection. The GPS000 incorporates advanced anti-jam technology, reducing the effects of interference in hostile RF environments. Cable delay compensation ensures timing accuracy is not degraded when using long lengths of cable. Please refer to section for installation recommendations and section 3 for details of system operation.. - Package contents The GPS000 is supplied with the following component parts: GPS timing antenna Decoder module Stainless steel surface (or wall if ordered ) mount antenna bracket 8m TNC to TNC RG58CU antenna connection cable Cable for connection to an MC Series master clock (Cable length is dependent on the model ordered. See appendix A for details) 5 way connector for connection to an MC Series master clock A user manual. - GPS000 front view GPS000 GPS Time Receiver System Power Lock Data Cable Delay Compensation (cable lengths in metres) 80 0 0 0 Output Cable 0 Input Cable 5 8 3 Fault A B C D WARNING: Ensure is connected before applying system power www.worldtimesolutions.com World Time Solutions 6 9 Figure. GPS000 front view 7 No. Function No. Function Decoder module 6 Case fixing points (x) Status LEDs 7 cable connection 3 Output cable connection 8 GPS timing antenna Cable entry grommet 9 output 5 Cable delay compensation 0 mounting bracket 0 Table. - GPS000 functions GPS000 - GPS Time Receiver System - User Manual - Version.
- Installing the GPS000 The GPS000 should be installed in a suitable location following the recommendations in sections. and. below. Both the antenna and the decoder module should be securely fixed in place and the interconnecting cable connected, before connecting the decoder module to the MC Series master clock.. - Positioning and installing the antenna The GPS antenna is designed for external installation, either on the roof or side of a building (special order wall mounting bracket required). For maximum signal reception reliability, the antenna should be positioned with a clear unobstructed view of the sky. For installations where an unobstructed view of the sky is not practical, the antenna should be installed with as large a view as possible of the sky towards the equator. Installing the antenna with a reduced view of the sky may result in increased synchronisation periods and slightly degraded timing accuracy. The antenna should be mounted with the top of the dome facing directly upwards and secured using the stainless steel surface mount antenna bracket (or wall mounting bracket if supplied). Care should be taken to ensure the fixings used (not supplied) are suitable for the application. If the antenna is to be installed in a location susceptible to a direct lightning strike, the installation of a surge protection device inline between the GPS antenna and the decoder module is recommended. The surge protection device should be installed internally at the point of cable entry, providing protection for the decoder module against flashover. Please refer to the instructions supplied with the surge protection device for further details.. - Installing the decoder module The decoder module should be installed internally close to the point of antenna cable entry to the building. The enclosure should be secured in position using suitable fixings (not supplied) at the four.5mm (0.78 ) case fixing points (see figure.). THE DECODER MODULE IS NOT SUITABLE FOR EXTERNAL INSTALLATION..3 - System connection Cable connections are required between the GPS antenna and decoder module and between the decoder module and the MC Series master clock. It is important that the GPS antenna to decoder module connection is made prior to the master clock connection. The system is supplied with a pre-terminated 8 metre TNC to TNC GPS000 - GPS Time Receiver System - User Manual - Version.
8 8 Section : Installing the GPS000 RG58CU coaxial cable for connection between the antenna and the decoder module. If required, this cable may be substituted for an alternative length of identical cable type up to a maximum of 5 metres. The cable should be connected to the compatible threaded socket on the underside of the GPS antenna and the socket on the decoder module. The connection between the decoder module and the Remote Synchronisation Input on the MC Series master clock should be made using the supplied length of four core cable. Please refer to figure. below and table. for details of cable connections. decoder module antenna GPS000 GPS Time Receiver System Cable Delay Compensation (cable lengths in metres) master clock (rear view) Power Lock Data 80 0 0 0 Output Cable 0 Input Cable REMOTE SYNCHRONISATION INPUTS SYNC SYNC A B C A B C D D Fault A B C D WARNING: Ensure is connected before applying system power www.worldtimesolutions.com World Time Solutions output cable Figure. - GPS000 system connections 8m RG58CU TNC to TNC cable Terminal ID GND A B C D Cable colour code Cable screen drain wire Black / Red Red Black / White White Table. - Output cable connection detail If required, the decoder module to master clock cable may be extended using Belden 950 cable up to a maximum total length of 50m (500ft). For low smoke/plenum applications, the supplied cable should be substituted for a Belden 850 (or equivalent) type cable.. - Cable delay compensation The cable delay compensation significantly reduces the effect of cable propagation delays degrading timing accuracy at the master clock. The installer should set the cable delay compensation switch banks for both the input (antenna) and output (master clock) cables (see fig.) so as to match the actual cable lengths installed. Switches set to ON are summed to indicate the total cable length. For example, to set a length of 5 metres for the antenna cable, switches and only should be set on the Input Cable switch bank. GPS000 - GPS Time Receiver System - User Manual - Version. 3
3 - System operation Following correct installation (see section ), and upon powering the MC Series master clock, the GPS000 will automatically search for GPS signals. The GPS000 also begins to send setup information to the master clock. For a typical installation, system lock from a cold start should take under 0 minutes. Once the GPS000 has synchronised to the GPS satellites, time and date information is automatically sent to the master clock. 3. - GPS000 status information The operational status of the GPS000 may be visually confirmed via the status LEDs (see figure.). The table below lists the function of the different LEDs. LED Power Lock Data Fault Status Green LED illuminates continuously when power is applied to the GPS000 and the system is running Green LED illuminates continuously when the GPS000 is synchronised to the GPS satellites Green LED flashes to indicate communication between the GPS engine and the main processor Green LED illuminates continuously when the antenna is connected and functioning correctly. Red LED illuminates when the antenna is not detected or an antenna over voltage condition occurs. Details of fault condition can be viewed at the MC Series master clock. Red LED illuminates upon detection of a decoder module fault condition Table 3. - Status LEDs The synchronisation status may also be confirmed via the MC Series master clock. Please refer to the user manual supplied with the master clock for further details. GPS000 - GPS Time Receiver System - User Manual - Version.
A - Specifications Typical Performance Specifications: PPS accuracy: 50 nsec RMS GPS Specifications: Gain: 30 db @ 5 ºC Noise: 3.3 db max (5 ºC +/-5 ºC) GPS Module Specifications: GPS engine: RF Reception Sensitivity: 50 channel GPS L C/A -60 dbm (tracking) -60 dbm (reacquisition) -7 dbm (cold start) -56 dbm (hot start) I/O Connections: I/O connection: Single 000 Series communication port for connection to a MC Series master clock Mechanical & Electrical Specifications: dimensions: 77.5 x 66. mm (3.05 x.6 ) Decoder module dimensions: Decoder module enclosure: System weight: cable: Output cable: Output cable length supplied: 0 x 80 x 55 mm (7.95 x 3.5 x.7 ) (including removable wall brackets, excluding cable grommet and TNC) Light grey polycarbonate body with clear cover..5 kg (excluding output cable) 8m (5ft) RG58CU TNC to TNC Two pair plus drain 7x3 ( AWG) stranded cable with 00% foil shield and semi-rigid, sunlight resistant, Polyvinyl Chloride (PVC) jacket. GPS000-05: 5m (5ft) GPS000-5: 5m (50ft) GPS000-50: 50m (50ft) Environmental Specifications: Operating temperature: -30 to +50 ºC Relative humidity: 0% - 95%, noncondensing Standards Compliance: Electrical Safety: BS EN 60950-:006 Radio Disturbance: BS EN 550:006 Immunity Characteristics: BS EN 550:003 GPS000 - GPS Time Receiver System - User Manual - Version. 5
World Time Solutions Limited st Floor, Barclays House, Gatehouse Way, Aylesbury, Buckinghamshire, HP9 8DB, United Kingdom + (0) 96 338 - sales@worldtimesolutions.com www.worldtimesolutions.com